Lancaster 7-day weather forecast

Written by:
September 8, 2025
ESOlex // Shutterstock

Lancaster 7-day weather forecast

Stacker created the forecast for Lancaster, Pennsylvania using data from OpenWeather. This week's high is 84 °F on Friday, while the low is 47 °F on Sunday. There are expected to be 2 sunny days and rain on 3 days this week.

There are currently no weather alerts.

Monday, September 15

- High of 80 °F, low of 62 °F (55% humidity)
- Overcast with a 37% chance of rain (1 mm of rain)
- High risk of harm from sun exposure (6 UV index)
- Gentle breeze (8 mph wind)
- Sunrise at 6:46 AM, sunset at 7:14 PM
1 / 6
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Tuesday, September 16

- High of 76 °F, low of 56 °F (47% humidity)
- Overcast with a 20% chance of rain (0 mm of rain)
- High risk of harm from sun exposure (6 UV index)
- Moderate breeze (14 mph wind)
- Sunrise at 6:47 AM, sunset at 7:12 PM
2 / 6
otsphoto // Shutterstock

Wednesday, September 17

- High of 67 °F, low of 59 °F (82% humidity)
- Overcast with a 100% chance of rain (3 mm of rain)
- Moderate risk of harm from sun exposure (2 UV index)
- Gentle breeze (9 mph wind)
- Sunrise at 6:48 AM, sunset at 7:11 PM
3 / 6
AnnaElizabeth photography // Shutterstock

Thursday, September 18

- High of 82 °F, low of 62 °F (67% humidity)
- Sunny with a 0% chance of rain
- High risk of harm from sun exposure (6 UV index)
- Light breeze (6 mph wind)
- Sunrise at 6:49 AM, sunset at 7:09 PM
4 / 6
GP PIXSTOCK // Shutterstock

Friday, September 19

- High of 84 °F, low of 61 °F (46% humidity)
- Sunny with a 0% chance of rain
- Moderate breeze (13 mph wind)
- Sunrise at 6:50 AM, sunset at 7:07 PM
5 / 6
ESOlex // Shutterstock

Saturday, September 20

- High of 71 °F, low of 52 °F (40% humidity)
- Partly cloudy with a 0% chance of rain
- Gentle breeze (10 mph wind)
- Sunrise at 6:51 AM, sunset at 7:06 PM
6 / 6
IKO-studio // Shutterstock

Sunday, September 21

- High of 72 °F, low of 47 °F (52% humidity)
- Partly sunny with a 0% chance of rain
- Gentle breeze (8 mph wind)
- Sunrise at 6:52 AM, sunset at 7:04 PM
- New moon

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